Finding the Fourth Proportional to 1,386,083,534.11, 1,912,889,124.51 and 783,045,004.66
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Solution
The fourth proportional to 1,386,083,534.11, 1,912,889,124.51 and 783,045,004.66 is: 1,080,655,123.99
Step by Step Solution
- Step 1: Write the proportion equation
1,386,083,534.11 : 1,912,889,124.51 = 783,045,004.66 : x - Step 2: Convert to fraction form
1,386,083,534.11/1,912,889,124.51 = 783,045,004.66/x - Step 3: Cross multiply
1,386,083,534.11x = 1,912,889,124.51 × 783,045,004.66 - Step 4: Simplify right side
1,386,083,534.11x = 1,497,878,273,415,996,160 - Step 5: Solve for x
x = 1,497,878,273,415,996,160/1,386,083,534.11 - Step 6: Final answer
x = 1,080,655,123.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.